Why is my fuel filter leaking on my Duramax truck?
External fuel leaks can develop as well, and will be evidenced by fuel puddles on the ground or on top of the filter assembly. If you have a high-mileage Duramax-powered truck and suspect that it’s losing its prime, or you have seen evidence of fuel leaks from the filter head, you’ll want to address the problem as soon as possible.
What to do if you have a leak in your fuel filter?
After rebuilding and reinstalling the filter assembly you will need to prime the fuel system before starting the truck. Prime the system by pumping the primer plunger repeatedly until it becomes firm, and then start the engine. After starting, make a thorough check for fuel leaks before driving the truck.
Is there a leak in the fuel tank?
It has a pump in the motor bay that sucks fuel from the tank. Like a straw with a small crack will lose suction… So will your pump. Because its a suction pump you will not have any leaks showing from the leak unless you pressurise the system from the tank.
What to do if your fuel filter head is bad?
This is a direct replacement for your 2001-2004 LB7 Duramax and no fuel line modification is needed. Loss of Prime and low fuel rail pressure codes are common symptoms of a bad filter head.
External fuel leaks can develop as well, and will be evidenced by fuel puddles on the ground or on top of the filter assembly. If you have a high-mileage Duramax-powered truck and suspect that it’s losing its prime, or you have seen evidence of fuel leaks from the filter head, you’ll want to address the problem as soon as possible.
What kind of diesel does a Sierra 2500HD have?
2001 2500HD Sierra w/6.6L Duramax diesel. Sometimes, not often, once a month or so my truck at start up won’t fire, just turns over. I have to go under the hood and pump up my diesel fuel system – located on the passenger side of the engine.
Can a Duramax fuel filter be rebuilt without billet?
You can rebuild your fuel filter assembly without the billet parts, but we think the full kit is a wise investment. We followed along with shop technician Jake Phaff as he rebuilt the filter head on a customer’s LB7 Duramax.
After rebuilding and reinstalling the filter assembly you will need to prime the fuel system before starting the truck. Prime the system by pumping the primer plunger repeatedly until it becomes firm, and then start the engine. After starting, make a thorough check for fuel leaks before driving the truck.
What should I do if my fuel filter leaks?
Gasoline should be held in its own container until it can be dropped off to a recycling location. Be careful of using plastic containers to hold gas, as it may eat through some kinds of plastic and cause a leak. Remove the clips holding the fuel filter in place. Most fuel filters are held in place by two plastic clips.
Is there a fuel leak at the top of the tank?
I dropped the tank down in order to see the top of the fuel pump and the fuel lines, started the truck up, checked around, and couldn’t find any leaks. But, at the top of the tank near the front corner, there is a plastic 90 degree elbow sticking out. I looked around, and then found a plastic vent line that was left hanging.
How is the fuel line attached to the fuel filter?
Fasten the fuel filter to the fuel line. Slide the fuel lines onto the front and back of the filter the same way they were attached to the old one. With the fuel line in place on the filter, slide the plastic clips through the holes on the fuel line nozzle to secure the line in place on the fuel filter.